David Walsh Blog

• By David WalshJuly 6, 2020

  Get Worldwide Postal Code Data with Zip Code API

  Accurate shipping and location information is well worth the price you need to pay for it. You can sell that information, you can target consumers to perfection, and save yourself loads of frustration when it comes to shipping. Creating your own location API isn't worth the...

• By David WalshJune 30, 2020

  JavaScript in SVGs

  SVGs are such an amazing tool for creating custom fonts, animations, size-reduced graphics, and more. They're part HTML, part image, and all awesome. Many websites have moved toward SVG instead of JPG, GIF, and PNG due to the flexibility that SVG provides.Whats one example...

• By David WalshJune 23, 2020

  CSS background-repeat: round

  The CSS spec is full of gems that sneak their way past most of us web designers and developers. Stuff like :focus-within, prefers-reduced-motion, and prefers-color-scheme suddenly make their way into CSS without us really finding out for months or years. One such...

• By David WalshJune 10, 2020

  Kotlin Coroutines and Delay

  Whenever I suspect that there's a timing conflict causing a problem with rendering and directives, I usually opt for a JavaScript setTimeout with a delay. The setTimeout code never makes it to production, but it does help me to understand if my code is the...

• By David WalshJune 8, 2020

  3 Great Ways to Monetize Content

  Monetizing content on the web usually boils down to one thing: advertisements. The problem with adding advertisements to your website, especially from the popular ad services, is that they can be slow and they certainly don't protect user privacy. That's where alternative monetizing opportunities come into...

• By Landon SchroppMay 27, 2020

  Are You a Developer?

  “You’re not really a developer. Sooner or later people are going to realize you don’t know what you’re talking about. You’re just not good enough.”You’ve probably had thoughts like these at one point or another. You’ve never heard someone else tell you that you’re not a...

• By Mohan PierceMay 25, 2020

  Devising the Cloak of Invisibility in JavaScript

  Steganography. The art of hiding something right under your nose. For as long as humans have been alive, we’ve been trying to hide things — whether it’s our last slice of pizza or the location of a buried treasure. Do you remember the cool invisible lemon...

• By David WalshMay 15, 2020

  Offscreen Text for Copy & Paste

  The relationship between HTML and CSS is special: mixing content via HTML with presentation from CSS to make an awesome presentation. Sometimes, however, you need to employ CSS tricks solely to enhance functionality. This could be one of those cases.When browsing through the Firefox...

• By David WalshMay 13, 2020

  Unlock Your Mac with Apple Watch

  I convinced myself six months ago that I needed to give the Apple Watch a try. While I wear it every day and enjoy a few features, I've felt a bit let down by the experience. I do, however, believe that the Apple Watch...

• By David WalshMay 12, 2020

  Free SSL Certificates with ZeroSSL

  During my early years in web development, one of the most costly and annoying tasks was securing and installing security certificates on client websites. Most providers charged hundreds of dollars for SSL certs and getting them configured properly was a huge source of stress. Securing...